FSSD07BQX_12 FAIRCHILD [Fairchild Semiconductor], FSSD07BQX_12 Datasheet

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FSSD07BQX_12

Manufacturer Part Number
FSSD07BQX_12
Description
1-Bit / 4-Bit SD/SDIO and MMC Dual-Host Multiplexer
Manufacturer
FAIRCHILD [Fairchild Semiconductor]
Datasheet
© 2007 Fairchild Semiconductor Corporation
FSSD07 Rev. 1.0.2
FSSD07
1-Bit / 4-Bit SD/SDIO and MMC Dual-Host Multiplexer
Features
Applications
Related Resources
Ordering Information
FSSD07UMX
FSSD07BQX
On Resistance: 5Ω Typical, V
f
Low On Capacitance: 6pF Typical
Low Power Consumption: 2µA Maximum
Supports Secure Digital (SD), Secure Digital I/O
(SDIO), and Multimedia Card (MMC) Specifications
Supports 1-Bit / 4-Bit Host Controllers (V
to 3.6V) Communicating with
High-Voltage (2.7-3.6V) and Dual-Voltage Cards
(1.65-1.95V, 2.7-3.6V)
Cell Phone, PDA, Digital Camera, Portable GPS, and
Notebook Computer
LCD Monitor, TV, and Set-Top Box
Number
toggle
-
24-Lead MLP and UMLP Packages
FSSD07 Evaluation Board
Evaluation Board Users Guide
For samples, questions, or board requests; please
contact
Part
: >75MHz
V
DDC
analogswitch@fairchildsemi.com
=1.65 to 3.6V, V
FSSD07
Mark
Top
JK
Temperature Range
DDH1/H2
DDC
-40°C to +85°C
-40°C to +85°C
Operating
=2.7V
=1.65 to 3.6V
DDH1/H2
=1.65V
24-Lead Molded Leadless Package (MLP), JEDEC
MO-220, 3.5 x 4.5mm
24-Lead Ultra-thin Molded Leadless Package
(UMLP), 0.4mm pitch
Description
The FSSD07 is a 2:1 multiplexer that allows dual Secure
Digital (SD), Secure Digital I/O (SDIO), and Multimedia
Card (MMC) host controllers to share a common
peripheral. The host controllers can be equal to, greater
than, or less than peripheral card supply with minimal
power consumption. This configuration enables dual
host CMD, CLK, and D[3:0] signals to be multiplexed to
a common peripheral.
The architecture includes the necessary bi-directional
data and command transfer capability for single high-
voltage cards or dual-voltage supply cards. The clock
path is a uni-directional buffer.
Typical applications involve switching in portables and
consumer applications: cell phones, digital cameras,
home theater monitors, set-top boxes, and notebooks.
Package Description
Figure 1. Analog Symbol Diagram
www.fairchildsemi.com
March 2012
Packing
Method
Tape &
Tape &
Reel
Reel

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FSSD07BQX_12 Summary of contents

Page 1

FSSD07 1-Bit / 4-Bit SD/SDIO and MMC Dual-Host Multiplexer Features  On Resistance: 5Ω Typical, V  >75MHz toggle  Low On Capacitance: 6pF Typical  Low Power Consumption: 2µA Maximum  Supports Secure Digital (SD), Secure Digital ...

Page 2

Pin Configuration DAT[2] 3 DAT[ CMD VDDC 6 7 GND 8 CLK DAT[0] 9 DAT[ Figure 2. MLP Pin Assignments Pin Definitions Pin# MLP Pin# UMLP ...

Page 3

Typical Application 1.65V to 3.6V 1.65V to 3. CMD CMD DAT[3:0] DAT[3:0] CMD, DAT[3:0] CMD, DAT[3:0] WiFi, WiFi Bluetooth, Bluetooth, MMC or SD MMC or SD Peripheral Peripheral CLK CLK SD Card ...

Page 4

Functional Description The FSSD07 enables the multiplexing of dual ASIC / baseband processor hosts to a common peripheral card or module, providing bi-directional support of the dual- voltage SD/SDIO or MMC cards available in the marketplace. Each host SDIO port ...

Page 5

Absolute Maximum Ratings Stresses exceeding the absolute maximum ratings may damage the device. The device may not function or be operable above the recommended operating conditions and stressing the parts to these levels is not recommended. In addition, extended exposure ...

Page 6

DC Electrical Characteristics at 1.8V V All typical values are for V =1.8V at 25°C unless otherwise specified. DDC Symbol Parameter Common Pins V Clamp Diode Voltage IK Control Input Voltage V IH High Control Input Voltage V IL Low ...

Page 7

DC Electrical Characteristics at 2.7V V All typical values are for V =2.7V at 25°C unless otherwise specified. DDC Symbol Parameter Common Pins V Clamp Diode Voltage IK Control Input Voltage V IH High Control Input Voltage V IL Low ...

Page 8

AC Electrical Characteristics at 1.8V V All typical values are for V =1.8V at 25°C unless otherwise specified. DDC Symbol Parameter Turn-On Time CMD, DAT[3:0] Turn-Off Time, t OFF CMD, DAT[3:0] t ...

Page 9

AC Electrical Characteristics at 3.3V V All typical values are for V =3.3V at 25°C unless otherwise specified. DDC Symbol Parameter Turn-On Time CMD, DAT[3:0] Turn-Off Time, t OFF CMD, DAT[3:0] t ...

Page 10

Test Diagrams nDAT[3:0],nCMD GND GND GND GND GND = Figure 5. On Resistance nDAT[3:0],nCMD GND ...

Page 11

Test Diagrams (Continued 2.5ns RISE V ddx 90% 90% Input - V CLKI ddx 10% GND V OHC Output - V OUT 50 pLH Figure 11. CLK Propagation Delay Waveforms V S ...

Page 12

Physical Dimensions Figure 16. 24-Lead, Molded Leadless Package (MLP) Package drawings are provided as a service to customers considering Fairchild components. Drawings may change in any manner without notice. Please note the revision and/or date on the drawing and contact ...

Page 13

Physical Dimensions 0. PIN #1 IDENT 0.55 MAX. 0.10 C 0.08 C 0.05 0.00 0.35 23X 0.45 1 0.45 0.55 Figure 17. 24-Lead, Ultra-thin Molded Leadless Package (UMLP), 0.4mm pitch Package drawings are provided as a service to ...

Page 14

Fairchild Semiconductor Corporation FSSD07 Rev. 1.0.2 14 www.fairchildsemi.com ...

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